End-to-end encryption is an important feature in messaging, as it's the first step in protecting users from surveillance. A vandalised bank during the 2019 protest. File photo: May James/HKFP. For crypto enthusiasts, there was the โgmโ app, a self-described โmeme appโ which only allowed users to greet each other with โgm,โ or โgood morning,โ a common acronym thrown around on Crypto Twitter and Discord. But the gm app was shut down back in September after a hacker reportedly gained access to user data. The optimal dimension of the avatar on Telegram is 512px by 512px, and itโs recommended to use PNG format to deliver an unpixelated avatar. 4How to customize a Telegram channel?
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